Lincoln Electric K2704-3, K2704-2 manual Testing the Torch, Motor Check, Testing the Potentiometer

COUGAR™ Push Pull Gun

Troubleshooting Guide

TESTING THE TORCH

Motor Check.	Remove the torch connector from the cabinet.
	Using the torch Control Cable Connector, check the resistance across pins “A”
	and “B” (motor leads). The resistance across the motor should be between 5-10
	ohms. If an open circuit or short exist, check the motor leads and motor
	independently.
Testing the Potentiometer.	Using the torch Control Cable Connector, check the resistance across pin “D”
	(wiper) and pin “C”. The resistance should vary from 5K - 0 ohms.
	Check the resistance across pin “D” (wiper) and pin “G”. The resistance should
	vary from 5K - 0 ohms.
Testing the Trigger Switch.	Using the torch Control Cable Connector, check for continuity across pins “E”
	and “F” when the trigger is pressed.

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